<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="name" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="sex">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="add()">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item, index) in arr" :key="index">
          <td>{{ index + 1 }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.sex }}</td>
          <td>
            <button @click="del(id)">删除</button>
            <button @click="compile(index)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      arr: [
        { name: "Tom2", age: "19", sex: "男" },
        { name: "jone", age: "19", sex: "男" },
        { name: "哈哈", age: "19", sex: "男" },
      ],
      name: "",
      age: "",
      sex: "",
      obj: {},
      flag: false,
      index: 0,
    };
  },
  methods: {
    add() {
      if (!this.flag) {
        if (this.nane === "" || this.age === "" || this.sex === "") {
          return alert("请输入完整的数据");
        }
        this.obj = { name: this.name, age: this.age, sex: this.sex };
        this.arr.push(this.obj);
        (this.name = ""), (this.age = ""), (this.sex = "");
      } else {
        console.log("这是修改");
        this.obj = { name: this.name, age: this.age, sex: this.sex };
        this.arr.splice(this.index, 1, this.obj);
        console.log(this.index);
        this.flag = false;
        (this.name = ""), (this.age = ""), (this.sex = "");
      }
    },
    compile(index) {
      this.name = this.arr[index].name;
      this.age = this.arr[index].age;
      this.sex = this.arr[index].sex;
      this.index = index;
      this.flag = true;
    },
    del(index) {
      this.arr.splice(index, 1);
    },
  },
};
</script>
